# Language world vs KnowLang

The clearest difference is in-app purchases: Language world at none against KnowLang's 7. Language world also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (11.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. KnowLang sells 7 in-app purchases, starting at $2.99 per month. Language world asks for nothing beyond the download.

Language world ships an update weekly, KnowLang every 3 weeks. The most recent releases landed on September 22, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Language world | KnowLang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowlang/id6444553784/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 17 MB | 31 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [pcltd](https://appshunter.io/developer/1457816117) | [Iaroslav Oleinikov](https://appshunter.io/developer/1651604102) |

## What reviewers say

### Language world

[App page](https://appshunter.io/ios/app/language-world/id1645870913)

**Features:** macOS Compatibility

**In-app purchases:** none


### KnowLang

[App page](https://appshunter.io/ios/app/knowlang/id6444553784)

Master English with a comprehensive app featuring a 18,000-word dictionary, irregular verb drills, and grammar lessons from A1 to C2. Engage with pronunciation practice, reading materials, and word games to enhance your vocabulary and fluency.

**Highlights:** 18,000-word dictionary, Irregular verb training, Grammar lessons (A1-C2), Pronunciation practice, English books, Word games

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowLang Pro (1 месяц) | $2.99 | per month |
| KnowLang Pro (6 месяцев) | $9.99 | per 6 months |
| KnowLang Pro (1 год) | $17.99 | per year |
| 15 монет | $0.29 | one-time |
| 60 монет | $0.99 | one-time |
| 140 монет | $1.99 | one-time |
| 300 монет | $2.99 | one-time |


## Frequently asked questions

### Is Language world free?

Language world is free to download, with no in-app purchases.

### Is KnowLang free?

KnowLang is free to download, with in-app purchases available.

### Do Language world or KnowLang have ads?

Neither Language world nor KnowLang shows ads.

### Which is updated more often, Language world or KnowLang?

Language world ships an update weekly, and KnowLang every 3 weeks. Most recently, Language world was updated on September 22, 2026 and KnowLang on June 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*